what are the differences between f01 over years?
i tried to use the search engine and google but couldnt find a detailed answer
all i want to know is what are the excact difference in 7 series from 2009 till 2012,
i know 2013 will have so many new things and change in exterrior,
but i need to know from 2009 till 2012 was there any change at all ? exterior or interior..